class Teacher(object):
    def __init__(self, name, age, gender, id, tel, course):
        self.name = name
        self.age = age
        self.gender = gender
        self.id = id
        self.tel = tel
        self.course = course

    def __str__(self):
        return (f"This teacher's information: "
                f"name = {self.name}, age = {self.age}, gender = {self.gender}, "
                f"id = {self.id}, tel = {self.tel}, course = {self.course}")
